CN107391355A - A kind of method and apparatus for controlling kernel module daily record output - Google Patents
A kind of method and apparatus for controlling kernel module daily record output Download PDFInfo
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- CN107391355A CN107391355A CN201710611438.7A CN201710611438A CN107391355A CN 107391355 A CN107391355 A CN 107391355A CN 201710611438 A CN201710611438 A CN 201710611438A CN 107391355 A CN107391355 A CN 107391355A
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Abstract
The embodiment of the invention discloses a kind of method and apparatus for controlling kernel module daily record output, system receives the module name of user's input and corresponding daily record rank；Kernel module corresponding to the module name is searched, and the module name and the daily record rank are stored in array corresponding to the kernel overall situation；Module name corresponding to the first kernel module is obtained, and searches daily record rank corresponding to the module name from the array according to the module name；When the system level of target journaling is less than or equal to the daily record rank with setting, then it is the daily record required for user monitoring system running state to illustrate the target journaling, and accordingly, system can export the target journaling.User is by setting the daily record rank of kernel module, it is possible to achieve the dynamic that daily record in kernel module exports is adjusted.And kernel module journal stage is adjusted otherwise by this dynamic, can make it that the daily record of output is more reasonable, it is apparent, more effectively.
Description
Technical field
The present invention relates to linux kernel technical field, more particularly to a kind of method for controlling kernel module daily record output
With device.
Background technology
It is very extensive in the application of current Linux server.Effectively monitor the operation of these Linux server systems
Cheng Feichang is necessary, and one of most effective of which mode is exactly the daily record exported by checking linux system kernel module.
In traditional approach, the daily record of linux system kernel module output, all it is the original mechanism of system of continuing to use, that is, passes through
Printk is printed in kernel log file/var/log/message.Although linux system itself provides 8 levels of daily record
Not.But the setting of these ranks is all kernel modules for whole linux system, and some kernel mould can not be directed to
Block carries out the control of daily record output, can not be directed to the dynamic control that some module carries out daily record output.This allows for us
When checking the running situation of a certain kernel module, it is necessary to believe from the massive logs of kernel log/var/log/message files
Search valuable in breath, this is a sizable workload.
If the daily record grade setting of system is unreasonable, even if after we have passed through substantial amounts of search, it is likely to be obtained
Valuable information it is very little.This is not all user's institute's phases of any one developer, O＆M person and the system
Hope.
It is that those skilled in the art are urgently to be resolved hurrily it can be seen that how to realize the output of daily record in dynamic control kernel module
Problem.
The content of the invention
The purpose of the embodiment of the present invention is to provide a kind of method and apparatus for controlling kernel module daily record output, it is possible to achieve
The output of daily record in dynamic control kernel module.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of method for controlling kernel module daily record output, bag
Include：
Receive the module name of user's input and corresponding daily record rank；
Kernel module corresponding to the module name is searched, and the module name and the daily record rank are stored in kernel
In array corresponding to the overall situation；
Module name corresponding to the first kernel module is obtained, and the module is searched from the array according to the module name
Daily record rank corresponding to name；Wherein, first kernel module is any one kernel module in all kernel modules；
Judge whether the system level of target journaling in the first kernel module is less than or equal to first kernel module and corresponds to
Daily record rank；Wherein, the target journaling is any one day in all daily records included in first kernel module
Will；
If so, then export the target journaling.
Optionally, it is described to search kernel module corresponding to the module name, and by the module name and the journal stage
Array corresponding to not being stored in the kernel overall situation includes：
According to kernel module corresponding to module name lookup；
The module name after assembling and the daily record rank are sent to the kernel mould by ioctl control interfaces
Block；
The module name after assembling and the daily record rank are parsed, and by the module name after parsing and
The daily record rank is stored in array corresponding to the kernel overall situation.
Optionally, after the output target journaling, in addition to：
Export the module name of the kernel module belonging to the target journaling.
The embodiment of the present invention additionally provides a kind of device for controlling kernel module daily record output, including receiving unit, storage
Unit, searching unit, judging unit and output unit,
The receiving unit, for the module name for receiving user's input and corresponding daily record rank；
The memory cell, for searching kernel module corresponding to the module name, and by the module name and described
Daily record rank is stored in array corresponding to the kernel overall situation；
The searching unit, for obtaining module name corresponding to the first kernel module, and according to the module name from described
Daily record rank corresponding to the module name is searched in array；Wherein, first kernel module is appointing in all kernel modules
One kernel module of meaning；
The judging unit, it is described whether the system level for judging target journaling in the first kernel module is less than or equal to
Daily record rank corresponding to first kernel module；Wherein, the target journaling is all days included in first kernel module
Any one daily record in will；
If so, the output unit is then triggered, the output unit, for exporting the target journaling.
Optionally, the memory cell includes searching subelement, assembling subelement and parsing subelement,
The lookup subelement, for according to kernel module corresponding to module name lookup；
The assembling subelement, for the module name after assembling and the daily record rank to be connect by ioctl controls
Mouth is sent to the kernel module；
The parsing subelement, for being parsed to the module name after assembling and the daily record rank, and will solution
The module name and the daily record rank after analysis are stored in array corresponding to the kernel overall situation.
Optionally, the output unit is additionally operable to export the module name of the kernel module belonging to the target journaling.
System receives the module name of user's input and corresponding daily record rank it can be seen from above-mentioned technical proposal；Look into
Kernel module corresponding to the module name is looked for, and the module name and the daily record rank are stored in corresponding to the kernel overall situation
In array；Module name corresponding to the first kernel module is obtained, and the module is searched from the array according to the module name
Daily record rank corresponding to name；Judge whether the system level of target journaling in the first kernel module is less than or equal to first kernel
Daily record rank corresponding to module；When the system level of target journaling is less than or equal to the daily record rank of user's setting, then explanation should
Target journaling is the daily record required for user monitoring system running state, and accordingly, system can export the target journaling.User
By the daily record rank for setting kernel module, it is possible to achieve the dynamic that daily record in kernel module exports is adjusted.And pass through this
Kind dynamic adjustment kernel module journal stage otherwise, can make it that the daily record of output is more reasonable, apparent, more effectively.
Brief description of the drawings
In order to illustrate the embodiments of the present invention more clearly, the required accompanying drawing used in embodiment will be done simply below
Introduce, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for ordinary skill people
For member, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of flow chart of method for controlling kernel module daily record to export provided in an embodiment of the present invention；
Fig. 2 is a kind of structural representation of device for controlling kernel module daily record to export provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Based on this
Embodiment in invention, for those of ordinary skill in the art under the premise of creative work is not made, what is obtained is every other
Embodiment, belong to the scope of the present invention.
In order that those skilled in the art more fully understand the present invention program, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
Next, a kind of method for control kernel module daily record output that the embodiment of the present invention is provided is discussed in detail.Fig. 1
For a kind of flow chart for the method for controlling kernel module daily record to export provided in an embodiment of the present invention, this method includes：
S101：Receive the module name of user's input and corresponding daily record rank.
During the daily record of linux system kernel module output, daily record corresponding to each kernel module can include a plurality of.Production
Every raw daily record, system can according to acquiescence program schema, to this daily record set a daily record rank, for the ease of with
The daily record rank of family input makes a distinction, and in embodiments of the present invention, also known as can be by the journal stage that system automatically generates
Irrespective of size is other, and accordingly, every daily record has its corresponding system level.
The daily record rank of user's input can regard the reference value evaluated to system level as.
In order to realize the daily record output of some kernel modules of control some or certain, user can set the kernel module
Daily record rank, to realize the output control to kernel module daily record.
Include multiple kernel modules in system, each kernel module has its corresponding module name, for the ease of system certainly
Which kernel module is each daily record rank that dynamic identification is set correspond to, in the specific implementation, user can be in correlation
The module name of kernel module, and daily record rank corresponding to the kernel module are inputted on the page.
S102：Kernel module corresponding to the module name is searched, and the module name and the daily record rank are stored
In array corresponding to the kernel overall situation.
Array corresponding to the kernel overall situation can be for store user input module name and corresponding journal stage it is other
Array., can be with according to the module name lookup after system receives the module name of user's input and corresponding daily record rank
Corresponding kernel module.
The module name and daily record rank of user's input belong to User space information, for the ease of User space information is stored to interior
In array corresponding to the core overall situation.First the module name and the daily record rank can be assembled, then by the use after assembling
Family state information is sent to the kernel module by ioctl control interfaces.
Kernel module start when can register corresponding character device, now linux system /dev catalogues under can generate this
Character device, and the operation processing function that registration is associated with the character device.When kernel module receives User space letter
After breath, function can be handled to trigger associated operation, the module name after assembling and the daily record rank are solved
Analysis, and the module name after parsing and the daily record rank are stored in array corresponding to the kernel overall situation.
S103：Module name corresponding to the first kernel module is obtained, and institute is searched from the array according to the module name
State daily record rank corresponding to module name.
By taking any one kernel module in all kernel modules included in system i.e. the first kernel module as an example, when from
When not finding daily record rank corresponding to first kernel module in array corresponding to the kernel overall situation, then illustrate user not to this
The daily record rank of first kernel module is set, then the daily record for the generation of the first kernel module can be according to system default
Mode exports.
, accordingly, can be global corresponding from kernel after user is to the other setting of first kernel module progress journal stage
Array in find daily record rank corresponding to first kernel module, then using the daily record rank as according to carrying out follow-up judgement
Process.
S104：Judge whether the system level of target journaling in the first kernel module is less than or equal to first kernel module
Corresponding daily record rank.
Target journaling can be any one daily record in all daily records of kernel module generation.
In embodiments of the present invention, digitized representation daily record rank, the smaller rank for then representing kernel module of numerical value can be used
It is higher, namely show that daily record caused by the kernel module is more important.
, accordingly, can be with when user wants the daily record output of the first kernel module of limitation by taking the first kernel module as an example
The numerical value that the daily record rank of first kernel module is set is smaller.
When the system level of target journaling in the first kernel module is less than or equal to daily record corresponding to first kernel module
During rank, then it is to use the log content needed for user to illustrate the target journaling, then can perform S105.
S105：Export the target journaling.
In a particular application, when some kernel module has problem, user can close the day of other kernel modules
Will exports, and only exports the daily record of the kernel module or its relevant kernel module, and the daily record for so allowing for output should for debugging
Kernel module is more valuable.So as to avoid in the mechanism that original system carries, the daily record Print All of all kernel modules goes out
Come, then carry out the worry that daily record is selected, so that journal displaying is more reasonable, more effectively, improve the efficiency of orientation problem.
For example, include 10 kernel modules, respectively kernel module 1- kernel modules 10 in system, in needs are checked
During the daily record that core module 1 generates, it is contemplated that for system level typically since " 1 ", user can be by kernel module 2- kernel modules
Daily record rank is disposed as " 0 " corresponding to 10, is not present in the daily record generated due to kernel module 2- kernel modules 10 system-level
Not little Yu Dengyu " 0 " daily record, now only kernel module 1 generate daily record can export, the daily record in other kernel modules is not
It can export.
It should be noted that be in above-mentioned introduction with numerical value it is smaller then represent kernel module rank it is higher, according to this come
Output system rank is less than or equal to the other daily record of corresponding journal stage.In addition or with numerical value more it is big then represent in
The rank of core module is higher, carrys out output system rank according to this and is more than or equal to the other daily record of corresponding journal stage, to realize control day
The output of will, the embodiment of the present invention, this is not limited.
System receives the module name of user's input and corresponding daily record rank it can be seen from above-mentioned technical proposal；Look into
Kernel module corresponding to the module name is looked for, and the module name and the daily record rank are stored in corresponding to the kernel overall situation
In array；Module name corresponding to the first kernel module is obtained, and the module is searched from the array according to the module name
Daily record rank corresponding to name；Judge whether the system level of target journaling in the first kernel module is less than or equal to first kernel
Daily record rank corresponding to module；When the system level of target journaling is less than or equal to the daily record rank of user's setting, then explanation should
Target journaling is the daily record required for user monitoring system running state, and accordingly, system can export the target journaling.User
By the daily record rank for setting kernel module, it is possible to achieve the dynamic that daily record in kernel module exports is adjusted.And pass through this
Kind dynamic adjustment kernel module journal stage otherwise, can make it that the daily record of output is more reasonable, apparent, more effectively.
While target journaling exports, for the ease of finding these valuable information from syslog file, I
The module name of the kernel module belonging to the target journaling can be printed when target journaling exports, it is namely defeated
Go out the module name of the kernel module belonging to the target journaling.
Fig. 2 is a kind of structural representation of device for controlling kernel module daily record to export provided in an embodiment of the present invention, is wrapped
Receiving unit 21, memory cell 22, searching unit 23, judging unit 24 and output unit 25 are included,
The receiving unit 21, for the module name for receiving user's input and corresponding daily record rank；
The memory cell 22, for searching kernel module corresponding to the module name, and by the module name and institute
Daily record rank is stated to be stored in array corresponding to the kernel overall situation；
The searching unit 23, for obtaining module name corresponding to the first kernel module, and according to the module name from institute
State and daily record rank corresponding to the module name is searched in array；Wherein, first kernel module is in all kernel modules
Any one kernel module；
The judging unit 24, for judging whether the system level of target journaling in the first kernel module is less than or equal to institute
State daily record rank corresponding to the first kernel module；Wherein, the target journaling is all for what is included in first kernel module
Any one daily record in daily record；
If so, the output unit 25 is then triggered, the output unit 25, for exporting the target journaling.
Optionally, the memory cell includes searching subelement, assembling subelement and parsing subelement,
The lookup subelement, for according to kernel module corresponding to module name lookup；
The assembling subelement, for the module name after assembling and the daily record rank to be connect by ioctl controls
Mouth is sent to the kernel module；
The parsing subelement, for being parsed to the module name after assembling and the daily record rank, and will solution
The module name and the daily record rank after analysis are stored in array corresponding to the kernel overall situation.
Optionally, the output unit is additionally operable to export the module name of the kernel module belonging to the target journaling.
System receives the module name of user's input and corresponding daily record rank it can be seen from above-mentioned technical proposal；Look into
Kernel module corresponding to the module name is looked for, and the module name and the daily record rank are stored in corresponding to the kernel overall situation
In array；Module name corresponding to the first kernel module is obtained, and the module is searched from the array according to the module name
Daily record rank corresponding to name；Judge whether the system level of target journaling in the first kernel module is less than or equal to first kernel
Daily record rank corresponding to module；When the system level of target journaling is less than or equal to the daily record rank of user's setting, then explanation should
Target journaling is the daily record required for user monitoring system running state, and accordingly, system can export the target journaling.User
By the daily record rank for setting kernel module, it is possible to achieve the dynamic that daily record in kernel module exports is adjusted.And pass through this
Kind dynamic adjustment kernel module journal stage otherwise, can make it that the daily record of output is more reasonable, apparent, more effectively.
A kind of method and apparatus of the control kernel module daily record output provided above the embodiment of the present invention is carried out
It is discussed in detail.Each embodiment is described by the way of progressive in specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.For device disclosed in embodiment
For, because it is corresponded to the method disclosed in Example, so description is fairly simple, related part is said referring to method part
It is bright.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention,
Some improvement and modification can also be carried out to the present invention, these are improved and modification also falls into the protection domain of the claims in the present invention
It is interior.
Professional further appreciates that, with reference to the unit of each example of the embodiments described herein description
And algorithm steps, can be realized with electronic hardware, computer software or the combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software, the composition and step of each example are generally described according to function in the above description.These
Function is performed with hardware or software mode actually, application-specific and design constraint depending on technical scheme.Specialty
Technical staff can realize described function using distinct methods to each specific application, but this realization should not
Think beyond the scope of this invention.
Directly it can be held with reference to the step of method or algorithm that the embodiments described herein describes with hardware, processor
Capable software module, or the two combination are implemented.Software module can be placed in random access memory (RAM), internal memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
Claims (6)
- A kind of 1. method for controlling kernel module daily record output, it is characterised in that including：Receive the module name of user's input and corresponding daily record rank；Kernel module corresponding to the module name is searched, and the module name and the daily record rank are stored in the kernel overall situation In corresponding array；Module name corresponding to the first kernel module is obtained, and the module name pair is searched from the array according to the module name The daily record rank answered；Wherein, first kernel module is any one kernel module in all kernel modules；Judge whether the system level of target journaling in the first kernel module is less than or equal to day corresponding to first kernel module Will rank；Wherein, the target journaling is any one daily record in all daily records included in first kernel module；If so, then export the target journaling.
- 2. according to the method for claim 1, it is characterised in that kernel module corresponding to the lookup module name, and By the module name and the daily record rank be stored in the kernel overall situation corresponding to array include：According to kernel module corresponding to module name lookup；The module name after assembling and the daily record rank are sent to the kernel module by ioctl control interfaces；The module name after assembling and the daily record rank are parsed, and by the module name after parsing and described Daily record rank is stored in array corresponding to the kernel overall situation.
- 3. according to the method for claim 2, it is characterised in that after the output target journaling, in addition to：Export the module name of the kernel module belonging to the target journaling.
- 4. a kind of device for controlling kernel module daily record output, it is characterised in that including receiving unit, memory cell, search list Member, judging unit and output unit,The receiving unit, for the module name for receiving user's input and corresponding daily record rank；The memory cell, for searching kernel module corresponding to the module name, and by the module name and the daily record Rank is stored in array corresponding to the kernel overall situation；The searching unit, for obtaining module name corresponding to the first kernel module, and according to the module name from the array It is middle to search daily record rank corresponding to the module name；Wherein, first kernel module is any one in all kernel modules Individual kernel module；The judging unit, for judging whether the system level of target journaling in the first kernel module is less than or equal to described first Daily record rank corresponding to kernel module；Wherein, the target journaling is in all daily records included in first kernel module Any one daily record；If so, the output unit is then triggered, the output unit, for exporting the target journaling.
- 5. device according to claim 4, it is characterised in that the memory cell includes searching subelement, assembling son list Member and parsing subelement,The lookup subelement, for according to kernel module corresponding to module name lookup；The assembling subelement, for the module name after assembling and the daily record rank to be sent out by ioctl control interfaces Deliver to the kernel module；The parsing subelement, for being parsed to the module name after assembling and the daily record rank, and by after parsing The module name and the daily record rank be stored in array corresponding to the kernel overall situation.
- 6. device according to claim 5, it is characterised in that the output unit is additionally operable to export the target journaling institute The module name of the kernel module of category.
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| CN108897659B (en) * | 2018-06-06 | 2021-10-15 | 腾讯音乐娱乐科技（深圳）有限公司 | Method, device and storage medium for modifying log level |
| CN112799922A (en) * | 2019-11-14 | 2021-05-14 | 合肥杰发科技有限公司 | Log management method, electronic equipment and storage device |
| CN113010366A (en) * | 2019-12-20 | 2021-06-22 | 阿里巴巴集团控股有限公司 | Log output method, device and equipment |
| CN113010366B (en) * | 2019-12-20 | 2024-05-24 | 阿里巴巴集团控股有限公司 | Log output method, device and equipment |
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